package cn.wolfcode.luowowo.website.web.resolver;


import cn.wolfcode.luowowo.member.domain.UserInfo;
import cn.wolfcode.luowowo.redis.service.IUserInfoRedisService;
import cn.wolfcode.luowowo.website.annotation.UserParam;
import cn.wolfcode.luowowo.website.util.CookieUtil;
import com.alibaba.dubbo.config.annotation.Reference;
import org.springframework.core.MethodParameter;
import org.springframework.web.bind.support.WebDataBinderFactory;
import org.springframework.web.context.request.NativeWebRequest;
import org.springframework.web.method.support.HandlerMethodArgumentResolver;
import org.springframework.web.method.support.ModelAndViewContainer;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * springmvc参数解析器
 * 当请求方法传过来
 */
public class UserInfoArgumentResolver implements HandlerMethodArgumentResolver {

    @Reference
    private IUserInfoRedisService userInfoRedisService;
    @Override
    public boolean supportsParameter(MethodParameter methodParameter) {
        return methodParameter.getParameterType() == UserInfo.class &&
                methodParameter.hasParameterAnnotation(UserParam.class);
    }

    @Override
    public Object resolveArgument(MethodParameter methodParameter, ModelAndViewContainer modelAndViewContainer, NativeWebRequest nativeWebRequest, WebDataBinderFactory webDataBinderFactory) throws Exception {

        HttpServletRequest request = nativeWebRequest.getNativeRequest(HttpServletRequest.class);
        HttpServletResponse response = nativeWebRequest.getNativeResponse(HttpServletResponse.class);

        String token = CookieUtil.getToken(request, response);

        UserInfo user = userInfoRedisService.getUserInfoByToken(token);

        return user;
    }
}
